| Modification of EPDM/MVQ with silane-grafting EPM |
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| DOI： |
| Key Words: silane-grafting EPM；compatibilizer；EPDM；MVQ；blend；modification |
| Author Name | Affiliation | | HE Jiang-hong | Beijing Research and Design Institute of Rubber Industry | | XIE Zhong-lin | Beijing Research and Design Institute of Rubber Industry |
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| Abstract: |
| The EPDM/MVQ was modified by using the silane-grafting EPM (EPM-g-S)as the compatibilizer and the modification mechanism was discussed.EPM-g-S was obtained by mixing EPM，silane coupling agent A-174[γ-(methyl acryldeoxy)propyl trimethyl silane] and DCP in a Brabender rheometer at the high temperature (170 ～ 190 ℃) and the high shearing (with rotor speed of 60 ～ 80 r·min-1.The physical properties，particularly the heat resistance and the compression set at high temperature of EPDM/MVQ were improved by using EPM-g-S as compatibilizer.It was found with infrared absorption spect rum that EPM-g-S was the product of the silane coupling agent A-174 grafted on the EPM molecular chain and the covulcanization of EPDM/MVQ or EPDM/EPM-g-S was achieved by peroxide crosslinking agent. |
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